If Faces Appear Distorted, You Could Have This Condition: Research presents a unique case of a patient with prosopometamorphopsia (home.dartmouth.edu)

submitted 7 months ago* (last edited 7 months ago) by MicroWave@lemmy.world to c/science@lemmy.world

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Imagine if every time you saw a face, it appeared distorted. For those who have a very rare condition known as prosopometamorphopsia, which causes facial features to appear distorted, that is reality.

As the website on what is known as PMO explains, “‘Prosopo’ comes from the Greek word for face ‘prosopon’ while ‘metamorphopsia’ refers to perceptual distortions.” The distortions can affect the shape, size, color, and position of facial features, and PMO can last for days, weeks, or even years.

A new Dartmouth study published in the “Clinical Pictures” section of The Lancet reports on a unique case of a patient with PMO. The research is among the first to provide realistic visualizations of how a patient experienced facial distortions.

The patient, a 58-year-old male with PMO, sees faces without any distortions when viewed on a screen and on paper but sees distorted faces that appear “demonic” when viewed in-person. The case is especially rare because he does not see distortions of faces across all contexts.

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[-] lungcookie@lemmy.world 10 points 7 months ago

This looks like the "Alien Face Illusion", except this person sees it all the time.

https://youtu.be/qYXIUY6-GGg?si=cEEEXcj5bQeS4Fct

[-] victorz@lemmy.world 2 points 7 months ago

Oh my god that is creepy as shit, dude. Right before bed too, gosh darn it.

[-] 200ok@lemmy.world 1 points 7 months ago

Neat optical illusion!

[-] NeatNit@discuss.tchncs.de 8 points 7 months ago

The cynic in me is thinking, what are the chances that this patient is faking it? Seems odd that just for this one person the effect wouldn't happen on screens, while it does for everyone else with this condition.

But I can push this thought aside. This is interesting, and I've never heard of this condition before.

[-] TheBlackLounge@lemm.ee 9 points 7 months ago

If you take psychedelics something similar can happen, and it's way less intense with faces on screens. Maybe it has to do with depth perception?

[-] NeatNit@discuss.tchncs.de 4 points 7 months ago

I can think up a few plausible explanation. The easiest of which for me is that with a static picture of a face - especially if it's not Actual Size™ - your brain might be aware that it's not an actual face. Or more accurately, the visual system is not convinced that it's a real face.

At the end of the day though, I'm no brain scientist and I've got layman's knowledge about the subject at best, so I'm happy to leave it to the professionals and trust that the scientists verified it in one way or another.

[-] Twinklebreeze@lemmy.world 5 points 7 months ago

Is this clickbait science?

[-] TH1NKTHRICE@lemmy.ca 15 points 7 months ago

I think The Lancet is a reputable journal. They seem to have conveyed the findings of this article well. With quotes from the authors as well. Seems like an adequately scientific article with very little exaggeration. So, by my standards I wouldn’t consider it click bait.

[-] Pretzilla@lemmy.world 6 points 7 months ago

No, it's a rare but interesting condition that could eventually have implications for adjacent psychological or physiological research.

[-] mozz@mbin.grits.dev 6 points 7 months ago* (last edited 7 months ago)

The title is definitely clickbaity but the science is real as far as I can tell.

This reminds me though: I knew a woman with mental health issues who was convinced that people around her were constantly making faces at her. The article says this specific thing is very very rare, and more neurological than psychological when it happens, but still I wonder a little bit. 😕

this post was submitted on 23 Mar 2024

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